60-07-02: Tail Rotor Drive Shaft
FAA order 60-07-02 is an airworthiness directive. The FAA's subject line: Tail Rotor Drive Shaft. It names Brantly B-2: about 53 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: rotorcraft systems.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Brantly International, Inc.
- Models
- B-2, B-2A, B-2B
- On this site
- Brantly B-2 53 registered
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (1,149 characters)
60-07-02 BRANTLY: Amdt. 117 Part 507 Federal Register March 23, 1960. Applies to Model B-2 Helicopters.
Compliance required as indicated.
(a) Applies to Serial Numbers 1 through 31. Compliance required prior to next flight.
Failures of the tail rotor drive shaft through the cooling fan drive pulley bolt hole have occurred. These failures result in loss of directional control. To relieve stresses in this area and preclude recurrence of these failures, the tail rotor drive system must be modified to incorporate:
(1) New long tail rotor drive shaft P/N 108-31 incorporating 2 1/2-inch long plug pinned in forward end of shaft at support location for cooling fan drive pulley,
(2) Redesigned cooling fan drive pulley bearing support sleeve P/N 339-19,
(3) New cooling fan drive pulley P/N 339-4,
(4) New housing spacer P/N 339-18,
(5) New pin retainer P/N 339-17,
(6) New tail rotor shaft forward support bearing P/N 88505,
(7) New cooling fan attach bolt AN 173-14A with AN 960-10 washer and AN 365-1032 nut. (Brantly Service Bulletin No. 2 covers this same subject.)
Revised April 17, 1965.
Related safety bulletins advice on the same designs, not orders
2007-04-17SW-07-28 · Rotor blade cracks
2004-09-23SW-04-90 ·
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/60-07-02.json · aircraft systems.